PCM2902E/2K

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Codec
• Characteristics:
  • High-quality audio conversion
  • USB interface for easy connectivity
  • Low power consumption
  • Compact package size
• Package: SSOP-28
• Essence: PCM2902E/2K is a high-performance audio codec IC that provides audio conversion and USB interface functionality in a compact package.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Resolution: 16-bit
• Sampling Rate: Up to 48 kHz
• Digital-to-Analog Converter (DAC):
  • Output Voltage Range: 0.9 Vpp
  • Signal-to-Noise Ratio (SNR): 98 dB
• Analog-to-Digital Converter (ADC):
  • Input Voltage Range: 0.9 Vpp
  • SNR: 95 dB
• Power Supply Voltage: 3.3 V
• Power Consumption: 45 mW (typical)

Detailed Pin Configuration

The PCM2902E/2K IC has a total of 28 pins. The pin configuration is as follows:

1. VCC
2. GND
3. AGND
4. AVCC
5. DVCC
6. D+ (USB Data+)
7. D- (USB Data-)
8. XTI (Crystal Oscillator Input)
9. XTO (Crystal Oscillator Output)
10. NC (No Connection)
11. NC
12. NC
13. NC
14. NC
15. NC
16. NC
17. NC
18. NC
19. NC
20. NC
21. NC
22. NC
23. NC
24. NC
25. NC
26. NC
27. NC
28. NC

Functional Features

• High-quality audio conversion between analog and digital signals.
• USB interface for easy connectivity with various devices.
• Low power consumption, making it suitable for portable applications.
• Compact package size allows for space-efficient designs.

Advantages and Disadvantages

Advantages: - High-quality audio conversion ensures accurate reproduction of sound. - USB interface simplifies the connection process. - Low power consumption extends battery life in portable devices. - Compact package size enables integration into small form factor designs.

Disadvantages: - Limited to 16-bit resolution, which may not be sufficient for certain professional audio applications. - Sampling rate limited to 48 kHz, which may not meet the requirements of high-resolution audio formats.

Working Principles

The PCM2902E/2K operates by converting analog audio signals into digital data or vice versa. It utilizes a built-in digital-to-analog converter (DAC) and an analog-to-digital converter (ADC) to perform this conversion. The USB interface allows for seamless communication with a host device, enabling audio input/output functionality.

Detailed Application Field Plans

The PCM2902E/2K is commonly used in various audio-related applications, including:

1. USB audio interfaces
2. USB microphones
3. USB speakers
4. USB sound cards
5. Portable audio recorders

Its compact size, low power consumption, and high-quality audio conversion make it suitable for these applications.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the PCM2902E/2K are:

1. PCM2704 - USB Audio DAC with 16-bit resolution and 48 kHz sampling rate.
2. PCM2906 - USB Stereo Audio Codec with 16-bit resolution and 48 kHz sampling rate.
3. CS4344 - 24-bit, 192 kHz Stereo DAC with USB interface.

These alternative models provide different features and specifications, allowing users to choose the most suitable option for their specific requirements.

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